US6934512B2 - Switching VSAT transmitter - Google Patents
Switching VSAT transmitter Download PDFInfo
- Publication number
- US6934512B2 US6934512B2 US09/185,070 US18507098A US6934512B2 US 6934512 B2 US6934512 B2 US 6934512B2 US 18507098 A US18507098 A US 18507098A US 6934512 B2 US6934512 B2 US 6934512B2
- Authority
- US
- United States
- Prior art keywords
- low noise
- noise amplifier
- microwave
- microwave low
- vsat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime, expires
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
Definitions
- the present invention relates to telecommunication in general, and in particular to improved VSAT satellite telecommunications methods and apparatus.
- VSAT remote terminal
- the type and availability of a power source may have a significant impact on the cost of a VSAT, particularly in rural or remote regions where power supply is relatively scarce and expensive.
- the present invention seeks to provide improved VSAT satellite telecommunications methods and apparatus having reduced overall power consumption.
- a typical low cost VSAT terminal comprises simple power and low noise amplifiers. These amplifiers are the major power consuming elements, and often account for more than 50% of total VSAT power consumption. Power switching methods and apparatus is provided for use with such simple, low cost amplifiers that are not generally equipped with controllers.
- a VSAT terminal including an antenna, a microwave power amplifier, a microwave low noise amplifier, a transmitter coupled via the microwave power amplifier to the antenna, a receiver coupled via the microwave low noise amplifier to the antenna, a user VSAT interface, and a controller in communication with the user VSAT interface and in electrical connection with the microwave power amplifier and the microwave low noise amplifier for supplying power thereto, the controller being operative to provide a less-than-full electrical power supply to either of the amplifiers in the absence of a communication session and operative to provide a full electrical power supply to either of the amplifiers in the presence of a communication session.
- the controller is responsive to operation of the user VSAT interface for providing electrical power to the microwave power amplifier.
- the controller is responsive to operation of the user VSAT interface for providing electrical power to the microwave low noise amplifier.
- the controller provides a less-than-full power supply to the microwave low noise amplifier and the microwave power amplifier in the absence of a communication session and the controller is responsive to operation of the user VSAT interface for providing a full electrical power supply to the microwave low noise amplifier and the microwave power amplifier.
- the controller provides a less-than-full power supply to the microwave power amplifier and a full power supply to the microwave low noise amplifier in the absence of a communication session and the controller is responsive to operation of the user VSAT interface for providing a full electrical power supply to the microwave low noise amplifier and the microwave power amplifier.
- the controller provides a less-than-full power supply to the microwave power amplifier and a full power supply to the microwave low noise amplifier in the absence of a communication session and the controller is responsive to receipt of an incoming transmission via the microwave low noise amplifier for providing a full electrical power supply to the microwave low noise amplifier and the microwave power amplifier.
- the controller is operative to provide a less-than-full electrical power supply to either of the amplifiers after a predetermined period of inactivity of the user VSAT interface.
- the controller is operative to provide a less-than-full electrical power supply to either of the amplifiers after a predetermined period of inactivity of the microwave low noise amplifier.
- the controller operates in accordance with a predetermined algorithm for providing electrical power to the microwave power amplifier.
- a VSAT telecommunication network including at lease one satellite, and a plurality of VSAT terminals in communication with the satellite, the at least one of the VSAT terminals includes an antenna, a microwave power amplifier, a microwave low noise amplifier, a transmitter coupled via the microwave power amplifier to the antenna, a receiver coupled via the microwave low noise amplifier to the antenna, a user VSAT interface, and a controller in communication with the user VSAT interface and in electrical connection with the microwave power amplifier and the microwave low noise amplifier for supplying power thereto, the controller being operative to provide a less-than-full electrical power supply to either of the amplifiers in the absence of a communication session and operative to provide a full electrical power supply to either of the amplifiers in the presence of a communication session.
- a method for managing power consumption in a VSAT terminal having an antenna, a microwave power amplifier, a microwave low noise amplifier, a transmitter coupled via the microwave power amplifier to the antenna, a receiver coupled via the microwave low noise amplifier to the antenna, a user VSAT interface, and a controller in communication with the user VSAT interface, the microwave low noise amplifier, and the microwave power amplifier, the method including providing a less-than-full electrical power supply to either of the amplifiers in the absence of a communication session, and providing a full electrical power supply to either of the amplifiers in the presence of a communication session.
- the providing a less-than-full electrical power supply step includes providing a less-than-full power supply to the microwave low noise amplifier and the microwave power amplifier in the absence of a communication session and the providing a full electrical power supply step includes providing a full electrical power supply to the microwave low noise amplifier and the microwave power amplifier in response to operation of the user VSAT interface.
- the method further includes providing a full power supply to the micro-wave power amplifier in the absence of a communication session, the providing a less-than-full electrical power supply step includes providing a less-than-full power supply to the microwave power amplifier and the providing a full electrical power supply step includes providing a full electrical power supply to the microwave power amplifier and the microwave power amplifier in response to operation of the user VSAT interface.
- the method further includes providing a full power supply to the microwave power amplifier in the absence of a communication session, the providing a less-than-full electrical power supply step includes providing a less-than-full power supply to the microwave power amplifier and the providing a full electrical power supply step includes providing a full electrical power supply to the microwave low noise amplifier and the microwave power amplifier in response to receipt of an incoming transmission via the microwave low noise amplifier.
- the providing a less-than-full electrical power supply step includes providing a less-than-full power supply to either of the amplifiers after a predetermined period of inactivity of the user VSAT interface.
- the providing a less-than-full electrical power supply step includes providing a less-than-full power supply to either of the amplifiers after a predetermined period of inactivity of the microwave low noise amplifier.
- FIG. 1 is a simplified pictorial illustration of a VSAT satellite telecommunication network system constructed and operative in accordance with a preferred embodiment of the present invention
- FIG. 2 is a simplified block diagram of the VSAT terminal of FIG. 1 ;
- FIG. 3 is a simplified flow chart of a method of using VSAT 10 operative in accordance with a preferred embodiment of the present invention.
- FIG. 4 is a simplified block diagram of electronic elements of controller 14 of FIG. 2 .
- FIG. 1 is a simplified pictorial illustration of a VSAT satellite telecommunication network system constructed and operative in accordance with a preferred embodiment of the present invention.
- VSATs 10 typically including an antenna 12 connected to a control unit 14 , also referred to as an “indoor unit” or IDU, are provided, for communication with a satellite 20 .
- VSAT 10 is typically connected to one or more user interfaces such as a computer 16 and a voice communicator 18 .
- a power source 22 is provided to power VSAT 10 .
- any power source 22 may be an alternative power source such as a windmill or solar panels, although any known power source may be provided.
- Terminal 10 typically comprises a power amplifier 24 connected to antenna 12 , such as any known microwave power amplifier, a transmitter 26 , and a user VSAT interface 28 , typically connectable to computer 16 and voice communicator 18 .
- Terminal 10 also typically comprises a low noise amplifier 30 connected to antenna 12 , such as any known microwave low noise amplifier, and a receiver 32 .
- a controller 15 typically being connected to power source 22 via a power supply 23 , directs full power or less-than-full power to power amplifier 24 and/or low noise amplifier 30 as described hereinbelow.
- Transmitter 26 , user VSAT interface 28 , receiver 32 , controller 15 , and power supply 23 typically collectively form control unit 14 .
- FIG. 3 is a simplified flow chart of a method of using VSAT 10 operative in accordance with a preferred embodiment of the present invention.
- the method of FIG. 3 provides for two preferred modes of operation of VSAT 10 .
- a communication session may be initiated by either a user via user VSAT interface 28 or by another VSAT or hub wishing to communicate with VSAT 10 .
- controller 14 provides full power to low noise amplifier 30 and less-than-full power to power amplifier 24 .
- Less-than-full power may be any power level less than that which is required for normal operation of low noise amplifier 30 and power amplifier 24 , including no power at all.
- Controller 14 then waits until an incoming transmission is received by VSAT 10 or until a user initiates an outgoing transmission. Controller 14 then continues to provide full power low noise amplifier 30 , as well as to power amplifier 24 .
- a communication session may only be initiated by a user via user VSAT interface 28 .
- controller 14 provides less-than-full power to low noise amplifier 30 and power amplifier 24 .
- Controller 14 then waits until the user initiates an outgoing transmission.
- Controller 14 then provides full power to both low noise amplifier 30 and power amplifier 24 .
- low noise amplifier 30 and power amplifier 24 preferably revert to their pre-session power modes as indicated above.
- FIG. 3 may be partly or wholly implemented as a computer software algorithm, as preprogrammed computer hardware, or as any suitable combination using techniques well known in the art.
- FIG. 4 is a simplified block diagram of transmission and power control elements typically included in controller 14 of FIG. 2 .
- a power control switch 34 is provided, typically coupled to a power source 36 which may be an AC or DC power source. In this manner power may be provided together with an RF transmission via an output 38 to the antenna transmitter and power amplifier (not shown), or cut off when there is no RF transmission to be sent.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
- Transceivers (AREA)
- Burglar Alarm Systems (AREA)
- Radio Relay Systems (AREA)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/185,070 US6934512B2 (en) | 1998-11-03 | 1998-11-03 | Switching VSAT transmitter |
AU14534/00A AU1453400A (en) | 1998-11-03 | 1999-10-28 | Switching vsat transmitter |
DE69930554T DE69930554T2 (de) | 1998-11-03 | 1999-10-28 | Schaltender vsat sender |
EP99971598A EP1062748B1 (en) | 1998-11-03 | 1999-10-28 | Switching vsat transmitter |
PCT/US1999/025212 WO2000027048A1 (en) | 1998-11-03 | 1999-10-28 | Switching vsat transmitter |
JP2000580317A JP2002529958A (ja) | 1998-11-03 | 1999-10-28 | スイッチングvsat送信器 |
ES99971598T ES2258349T3 (es) | 1998-11-03 | 1999-10-28 | Transmisor vsat de conmutacion. |
AT99971598T ATE321382T1 (de) | 1998-11-03 | 1999-10-28 | Schaltender vsat sender |
US11/150,291 US9112579B2 (en) | 1998-11-03 | 2005-06-13 | Switching VSAT transmitter with smart stand-by mode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/185,070 US6934512B2 (en) | 1998-11-03 | 1998-11-03 | Switching VSAT transmitter |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/150,291 Continuation-In-Part US9112579B2 (en) | 1998-11-03 | 2005-06-13 | Switching VSAT transmitter with smart stand-by mode |
Publications (2)
Publication Number | Publication Date |
---|---|
US20030100260A1 US20030100260A1 (en) | 2003-05-29 |
US6934512B2 true US6934512B2 (en) | 2005-08-23 |
Family
ID=22679449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/185,070 Expired - Lifetime US6934512B2 (en) | 1998-11-03 | 1998-11-03 | Switching VSAT transmitter |
Country Status (8)
Country | Link |
---|---|
US (1) | US6934512B2 (ja) |
EP (1) | EP1062748B1 (ja) |
JP (1) | JP2002529958A (ja) |
AT (1) | ATE321382T1 (ja) |
AU (1) | AU1453400A (ja) |
DE (1) | DE69930554T2 (ja) |
ES (1) | ES2258349T3 (ja) |
WO (1) | WO2000027048A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020196843A1 (en) * | 1999-03-23 | 2002-12-26 | Itzik Ben-Bassat | Satellite communication card |
US20060174299A1 (en) * | 2005-01-28 | 2006-08-03 | Mitsumi Electric Co. Ltd. | Antenna unit equipped with a tuner portion |
US20080198791A1 (en) * | 2007-02-19 | 2008-08-21 | Andrew Corporation | Satellite Communications Interoperability Module and Down-Conversion Method |
US20110151777A1 (en) * | 2009-12-21 | 2011-06-23 | Electronics And Telecommunications Research Institute | Dual mode satellite very small aperture terminal apparatus and controlling method thereof |
US20170302777A1 (en) * | 2016-04-13 | 2017-10-19 | Hughes Network Systems, Llc | Satellite terminal wireless voltage control |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9112579B2 (en) * | 1998-11-03 | 2015-08-18 | Gilat Satellite Networks Ltd. | Switching VSAT transmitter with smart stand-by mode |
US20020044094A1 (en) * | 2000-09-15 | 2002-04-18 | May Brian Douglas | System performance for use as feedback control of power supply output of digital receiver when receiver is operated in a standby mode |
US6704579B2 (en) * | 2001-02-15 | 2004-03-09 | Ensemble Communications | System and method of automatically calibrating the gain for a distributed wireless communication system |
Citations (15)
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US4704735A (en) * | 1985-09-12 | 1987-11-03 | Telonics, Inc. | System and method for automatic remote activation of an earth-based satellite transmitter |
EP0426452A2 (en) | 1989-11-01 | 1991-05-08 | Nec Corporation | Battery saving system for interrupting power supplies at intervals variable with traffic pattern |
US5128938A (en) | 1989-03-03 | 1992-07-07 | Motorola, Inc. | Energy saving protocol for a communication system |
US5233645A (en) | 1990-10-25 | 1993-08-03 | Electronics And Telecommunications Research Institute | Automatic power breaking circuits for communication equipments |
US5481561A (en) * | 1991-05-29 | 1996-01-02 | Comsat Corporation | Fully meshed CDMA network for personal communications terminals |
US5594951A (en) | 1994-10-07 | 1997-01-14 | Motorola, Inc. | Method and apparatus for saving power in a radiotelephone |
US5640691A (en) * | 1994-12-19 | 1997-06-17 | Lucent Technologies Inc. | Power controller for RF transmitters |
US5678228A (en) * | 1995-03-06 | 1997-10-14 | Hughes Aircraft Co. | Satellite terminal with sleep mode |
US5768684A (en) * | 1994-03-04 | 1998-06-16 | Motorola, Inc. | Method and apparatus for bi-directional power control in a digital communication system |
US5809420A (en) * | 1996-05-31 | 1998-09-15 | Fujitsu Limited | Transmission power control apparatus |
US5826170A (en) * | 1994-11-08 | 1998-10-20 | Space Systems/Loral, Inc. | Satellite communication power management system |
US5991635A (en) * | 1996-12-18 | 1999-11-23 | Ericsson, Inc. | Reduced power sleep modes for mobile telephones |
US6064857A (en) * | 1997-04-15 | 2000-05-16 | Globalstar L.P. | Dual mode satellite telephone with hybrid battery/capacitor power supply |
US6311048B1 (en) * | 1998-09-24 | 2001-10-30 | Aravind Loke | Intelligent control of receiver linearity based on interference |
US6556807B1 (en) * | 1998-10-06 | 2003-04-29 | Mitsubishi Electric & Electronics Usa, Inc. | Antenna receiving system |
Family Cites Families (10)
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US4731870A (en) * | 1984-11-23 | 1988-03-15 | The Johns Hopkins University | Platform transmitter terminal (PTT) for use with an ARGOS type satellite system and utilizing a solar array/rechargeable battery power source |
JPH0683085B2 (ja) * | 1986-03-26 | 1994-10-19 | ソニー株式会社 | 送信機 |
JPS6478010A (en) * | 1987-09-18 | 1989-03-23 | Matsushita Electric Ind Co Ltd | Microwave power amplifier |
US5257415A (en) * | 1991-03-20 | 1993-10-26 | Fujitsu Limited | Automatic transmission level control device |
US5530638A (en) * | 1993-09-24 | 1996-06-25 | At&T Corp. | Multi-resonant electronic power converter with a wide dynamic range |
US5774788A (en) * | 1995-03-17 | 1998-06-30 | Hughes Electronics | Remote ground terminal having an outdoor unit with a frequency-multiplier |
JPH08316756A (ja) * | 1995-05-22 | 1996-11-29 | Saitama Nippon Denki Kk | 送信出力制御方式 |
US5659892A (en) * | 1995-07-13 | 1997-08-19 | Hughes Electronics | Operation of low-cost, fixed output power radio in fixed gain mode |
US6252915B1 (en) * | 1998-09-09 | 2001-06-26 | Qualcomm Incorporated | System and method for gaining control of individual narrowband channels using a wideband power measurement |
US6169886B1 (en) * | 1998-11-02 | 2001-01-02 | Motorola, Inc. | Power amplifier control according to a delayed waveform suitable for use in a communication device |
-
1998
- 1998-11-03 US US09/185,070 patent/US6934512B2/en not_active Expired - Lifetime
-
1999
- 1999-10-28 DE DE69930554T patent/DE69930554T2/de not_active Expired - Lifetime
- 1999-10-28 JP JP2000580317A patent/JP2002529958A/ja active Pending
- 1999-10-28 WO PCT/US1999/025212 patent/WO2000027048A1/en active IP Right Grant
- 1999-10-28 AU AU14534/00A patent/AU1453400A/en not_active Abandoned
- 1999-10-28 EP EP99971598A patent/EP1062748B1/en not_active Expired - Lifetime
- 1999-10-28 ES ES99971598T patent/ES2258349T3/es not_active Expired - Lifetime
- 1999-10-28 AT AT99971598T patent/ATE321382T1/de not_active IP Right Cessation
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US4704735A (en) * | 1985-09-12 | 1987-11-03 | Telonics, Inc. | System and method for automatic remote activation of an earth-based satellite transmitter |
US5128938A (en) | 1989-03-03 | 1992-07-07 | Motorola, Inc. | Energy saving protocol for a communication system |
EP0426452A2 (en) | 1989-11-01 | 1991-05-08 | Nec Corporation | Battery saving system for interrupting power supplies at intervals variable with traffic pattern |
US5233645A (en) | 1990-10-25 | 1993-08-03 | Electronics And Telecommunications Research Institute | Automatic power breaking circuits for communication equipments |
US5481561A (en) * | 1991-05-29 | 1996-01-02 | Comsat Corporation | Fully meshed CDMA network for personal communications terminals |
US5768684A (en) * | 1994-03-04 | 1998-06-16 | Motorola, Inc. | Method and apparatus for bi-directional power control in a digital communication system |
US5594951A (en) | 1994-10-07 | 1997-01-14 | Motorola, Inc. | Method and apparatus for saving power in a radiotelephone |
US5826170A (en) * | 1994-11-08 | 1998-10-20 | Space Systems/Loral, Inc. | Satellite communication power management system |
US5640691A (en) * | 1994-12-19 | 1997-06-17 | Lucent Technologies Inc. | Power controller for RF transmitters |
US5678228A (en) * | 1995-03-06 | 1997-10-14 | Hughes Aircraft Co. | Satellite terminal with sleep mode |
US5809420A (en) * | 1996-05-31 | 1998-09-15 | Fujitsu Limited | Transmission power control apparatus |
US5991635A (en) * | 1996-12-18 | 1999-11-23 | Ericsson, Inc. | Reduced power sleep modes for mobile telephones |
US6064857A (en) * | 1997-04-15 | 2000-05-16 | Globalstar L.P. | Dual mode satellite telephone with hybrid battery/capacitor power supply |
US6311048B1 (en) * | 1998-09-24 | 2001-10-30 | Aravind Loke | Intelligent control of receiver linearity based on interference |
US6556807B1 (en) * | 1998-10-06 | 2003-04-29 | Mitsubishi Electric & Electronics Usa, Inc. | Antenna receiving system |
Non-Patent Citations (1)
Title |
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Khan K.S> "A single hop data/voice VSAT", Andrew Corporation, Richardson, TX 75081, 1990 , pp. 23.6.1-23.6.4 |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020196843A1 (en) * | 1999-03-23 | 2002-12-26 | Itzik Ben-Bassat | Satellite communication card |
US20060174299A1 (en) * | 2005-01-28 | 2006-08-03 | Mitsumi Electric Co. Ltd. | Antenna unit equipped with a tuner portion |
US7570915B2 (en) * | 2005-01-28 | 2009-08-04 | Mitsumi Electric Co., Ltd. | Antenna unit equipped with a tuner portion |
US20080198791A1 (en) * | 2007-02-19 | 2008-08-21 | Andrew Corporation | Satellite Communications Interoperability Module and Down-Conversion Method |
US20100097980A1 (en) * | 2007-02-19 | 2010-04-22 | Paul Gareth Lloyd | Satellite Communications Interoperability Module |
US7774016B2 (en) | 2007-02-19 | 2010-08-10 | Raven Antenna Systems Inc. | Satellite communications interoperability module and down-conversion method |
US8155050B2 (en) | 2007-02-19 | 2012-04-10 | Raven Manufacturing Limited | Satellite communications interoperability module |
US20110151777A1 (en) * | 2009-12-21 | 2011-06-23 | Electronics And Telecommunications Research Institute | Dual mode satellite very small aperture terminal apparatus and controlling method thereof |
US8559871B2 (en) | 2009-12-21 | 2013-10-15 | Electronics And Telecommunications Research Institute | Dual mode satellite very small aperture terminal apparatus and controlling method thereof |
US20170302777A1 (en) * | 2016-04-13 | 2017-10-19 | Hughes Network Systems, Llc | Satellite terminal wireless voltage control |
US9888106B2 (en) * | 2016-04-13 | 2018-02-06 | Hughes Network Systems, Llc | Satellite terminal wireless voltage control |
Also Published As
Publication number | Publication date |
---|---|
EP1062748A1 (en) | 2000-12-27 |
AU1453400A (en) | 2000-05-22 |
DE69930554T2 (de) | 2007-02-01 |
JP2002529958A (ja) | 2002-09-10 |
ATE321382T1 (de) | 2006-04-15 |
WO2000027048A1 (en) | 2000-05-11 |
EP1062748A4 (en) | 2003-01-02 |
ES2258349T3 (es) | 2006-08-16 |
US20030100260A1 (en) | 2003-05-29 |
DE69930554D1 (de) | 2006-05-11 |
EP1062748B1 (en) | 2006-03-22 |
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